Chainlit
Chainlit helps build conversational AI apps with your own logic.
At a glance
Starts at
$19 per month
Price as published by the vendor, September 2026.
Free tier
No
Platforms
Web
Best for
Developers looking to integrate custom logic into chat applications.
Not for
Native mobile app developers
3.8 out of 5
Scored by a Toolio reviewer after real useOur verdict
Builds reliable conversational AI, but requires technical skills. Good for developers who want control over their chat application's logic; avoid if you need full-featured observability and analytics out of the box.
✓What it does well
Custom LogicYou can integrate your own Python logic into chat applications.
Multiple Deployment OptionsDeploy as a web app, embedded copilot, FastAPI server, or custom React bot.
Auth IntegrationsSupports simple auth methods and OAuth with popular providers.
✕Where it falls short
Limited ObservabilityDoes not offer advanced observability and analytics features like detailed logs or performance monitoring.
No Free TierRequires a paid plan for most features, even at the smallest scale.
Platform DependencyPrimarily web-based; no native mobile app development support.
Key features
Chat Application DevelopmentDevelop beautiful design and user-friendly interfaces for chat apps.
Python IntegrationSupports custom Python logic within your applications.
Custom React ComponentsCreate customizable chat components using React.
OAuth IntegrationsSupport for popular OAuth providers